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28-01-2023 12:27

Juuso Äikäs

These were growing on a piece of thick Salix capre

27-01-2023 23:08

Patrice TANCHAUD

Bonsoir, récolte réalisée sur excréments ou p

27-01-2023 14:41

Juuso Äikäs

A couple days ago I found a plentiful growth of th

09-01-2023 14:08

Zoltan Lukacs Zoltan Lukacs

Anyone got an idea? It's immature material, but th

26-01-2023 15:23

Marja Pennanen

Hello forum. I collected some dark ones on Pinus

24-01-2023 19:53

ruiz Jose antonio

Hola,en restos de quemados,de unos 4 a 5 mm. Espor

24-01-2023 23:30

Josep Torres Josep Torres

Hola.Una Botryosphaeriaceae sobre la corteza de un

09-01-2023 08:14

Francisco  SÃNCHEZ Francisco SÁNCHEZ

Ascomiceto anaranjado sobre suelo desnudo, 29/12/2

23-01-2023 13:38

Castillo Joseba Castillo Joseba

Me mandan elo material seco de Galicia (España) r

16-01-2023 21:31

Riet van Oosten Riet van Oosten

Hello, Nearby the find of Calycina claroflava on

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Tiny pinkish apothecia on Fagus bark
Edvin Johannesen, 25-11-2022 23:03
Edvin JohannesenHello! 
These tiny (0.3-0.4 mm) greyish yellow/pinkish apos were found on thick bark, hidden under the thin outer bark of large rotting trunk of Fagus sylvatica lying on the ground. Attached to the substrate on a narrow, substipitate base. Outer surface with very short, pale protruding cells (appearing downy). Excipulum with large brownish, prismatic cells, gradually transitioning into paler, clavate cells towards the exterior.  Asci IKI-, mostly ca. 50 x 5 microns, with croziers. Paraphyses cylindrical, without guttules, non-septate, 1.5 - 2 microns across. Spores elliptical, with a small guttule near each pole, ca. 5-6 x 1.5-2 microns.

Images from fresh material, in water.

Are we in Mollisia? Suggestions appreciated.

Thanks!
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Hans-Otto Baral, 26-11-2022 09:29
Hans-Otto Baral
Re : Tiny pinkish apothecia on Fagus bark
This could be Pyrenopeziza (Mollisia) caespiticia or alternatively Mollisia sublividula. The latter has yellowish VBs in te paraphyses which is probably not the case in your fungus.
Edvin Johannesen, 26-11-2022 12:34
Edvin Johannesen
Re : Tiny pinkish apothecia on Fagus bark
You're right - no yellowish VBs in the paraphyses. I have compared with P. caespiticia and that is indeed a good match. I have seen that species once before, but then immature apothecia in erumpent clusters. Thanks a lot!